Abstract chart factory and chart classes that  separate the contract and implementation. jqPlot specific implementations of these classes.
Fix query charts with the new chart library. Replace spline chart(not supported by jqPlot) with area chart.
Auto resize to use full width
Draw timeline charts with queries
Validator for timeline charts
Merge branch 'master' into charts

Conflicts:
	js/tbl_chart.js
Add spline charts back
Use jQuery extend for options merging
More space needed due to increase of chart types
Merge branch 'master' into charts

Conflicts:
	tbl_chart.php
Fix typo
Merge pull request #134 from madhuracj/charts

Improvements to PMA charts